.daohang{
	flex-direction: column;
	position:absolute;
	width: 100%;
	top:0;
}				
.daohang a{
	display:none;
	width: 80%;
	border-bottom:1px solid #eee;
}
.daohang:hover{
	height: 300px;
	align-items: center;
}
.daohang:hover a{
	display:block;
}
.image1{
	background-image:url(./images/iphone_xs_small.jpg);
}
.image2{
	flex-wrap: wrap;
	justify-content: space-around;
}